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  1. By: Jacobi, C. G. J. (Carl Gustav Jakob), - Lottner, Eduard, - Borchardt, Carl Wilhelm, - Clebsch, Alfred, - Deutsche Akademie der Wissenschaften zu Berlin.
    Edition: 2. rev. Ausg.
    Publication info: Berlin, G. Reimer, 1884
    Holding Institution: University of California Libraries (archive.org)
  1. By: Clebsch, Alfred,
    Type: Article
    In: The Wilson bulletin
    Volume: 56
    Issue: 2
    Date: 1944
    Page Range: 128--128
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-